Knife River Corporation South operator
Controlled by
Knife River Corporation
MSHA operator ID: 0065163
- Fatalities
- 0
- Total incidents
- 20
- Mines on record
- 5
- Years on record
- 2007–2026
Compliance record
MSHA citations since 2005
243
citations
38
significant & substantial
$50,089
proposed penalties
$42,668
paid to date
85% of proposed penalties paid to date, a $7,421 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2005
155
inspections on record
2,584
inspection hours
9.4
citations per 100 inspection hours
ⓘ
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.243 citations across 2,584 inspection hours.
Source: MSHA inspections data, updated weekly.
Penalty disposition
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.$50K
proposed penalties
$48K
current assessed
$43K
paid to date
$6K
outstanding
221 assessments are final orders; 8 contested dockets.
As of the most recent assessment on 2026-04-22.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Top causes
- SLIP OR FALL OF PERSON 6 non-fatal
- HANDLING OF MATERIALS 4 non-fatal
- POWERED HAULAGE 4 non-fatal
- HANDTOOLS (NONPOWERED) 3 non-fatal
- DISORDERS (PHYSICAL AGENTS) 1 non-fatal
- MACHINERY 1 non-fatal
Incident timeline
2026
2
2025
1
2021
1
2020
1
2019
2
2018
1
2017
2
2015
1
2014
1
2011
2
2010
1
2009
1
2008
3
2007
1
Mines on record
- Honey Creek Quarry TX
- Skyhigh Pit TX
- River Bend Pit TX
- Lampasas Quarry TX
- Rosenfeld Pit TX
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For insurers, brokers, and safety consultants
The full compliance file on Knife River Corporation South
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.